Murder, the simplest is to find an opportunity to stab to death, and there are several steps for those with a little intelligence, such as poisoning.

For example, prepare a colorless and odorless poison and put it in the water that the deceased drinks, and then let the deceased drink it while he is not ready.

The more well-known cases, such as the heavy metal thallium poisoning case, because the evidence is scarce enough, although some people have high suspicions, but they are still unsolved.

Slightly more complex murder cases are calculated in several steps, and the best people will figure out how to design the unexpected.

Let's take this case — if it's really murder.

There is an accident in this case, that is, the deceased had a heart attack and died directly due to the fire.

According to Sun Jie, this is not a bomb after all, it is just a momentary deflagration, people can't die, at least there is the possibility of rescue.

"If this is murder, it must be guaranteed to be killed," Bai Song said to everyone: "Reasoning from here, the murderer will have a backhand, such as on the way to the hospital, trying to delay time, etc." Or, to get the deceased as drunk as possible that night. ”

"It's an idea. Detachment Zhuang nodded.

The Liu detachment of the Xijing Branch frowned and said, "Will we think about this matter too complicated?"

Detachment Liu looked at Bai Song: "Inspector Bai, don't think that anyone is as smart as you. ”

"I don't know what you mean by Detachment Liu?" Bai Song asked.

"Don't get me wrong. Liu Detachment said: "Not everyone is as professional as you, I think that if this is a homicide, then the murderer may think that this will definitely kill Yao." ”

"You have a point. Bai Song nodded: "Can you tell me more specifically?"

"If it is a murder by an outsider or a murder by the suspect's children, it may be more elaborately designed, but these water cats, it's not that I look down on them, it's not that the water cats we have encountered over the years have killed the boss, most of them are directly stabbed to death. Liu said.

"Hmm. Bai Song was thoughtful.

Bai Song understood what Liu's detachment meant, there was no need for the workers to kill the boss, and they couldn't get money if they killed them, and they might have to pay for their lives. Most of the cases of workers killing their bosses are to force the boss to ask for wages, and finally they are angry and blood-spattered for five steps, causing a tragedy.

"Having said all this, if someone is murdering, what is the motive for the crime?" the Zhuang detachment interrupted everyone.

This is actually the key to handling the case, and everyone understands that the murder case is not a simple case.

"This must expand the search area, Yao is more alone, this time to invite everyone to dinner this night, he also took the initiative to organize, for the start of the new project to invite a meal. Detachment Zhang asked: "This kid, how far does this kid have to offend people to have this kind of thing happen?"

Detachment Zhang is also talking about the category of criminal psychology.

Many veteran detectives don't know what a theory is called, but they still have enough understanding in practice.

In the court's decision, if all else in the case are the same, the sentence for premeditated murder is heavier than murder of passion.

The reason for this difference is that the subjective malice of premeditated murder is more serious than murder of passion. For example, if a worker asks the boss for wages and is forced to kill someone, he himself goes for money, and if the boss gives money, he will be fine, and the subjective viciousness is slightly weaker; while the premeditated murder does not take into account other circumstances at all, "I just want to kill you", and the subjective viciousness is even stronger.

Therefore, there is a high probability that there is a deep hatred for deliberate murder with a certain design.

"From this point of view, I am more inclined to shift the direction of the murderer's investigation to Yao's ex-wife, children and a few of his closest friends, because deep enough hatred cannot be formed in a day or two. Bai Song said: "Although the daughter called the police, and the son also asked us to file a case for investigation, the suspicion of the two cannot be ruled out." ”

"I support Inspector White's statement. Detachment Liu nodded: "We have to increase our efforts to investigate Yao's life." ”

"I'd like to ask his children about the situation again. Bai Song said.

"Okay", Liu Detachment looked at his watch: "It's already the middle of the night, his children are gone, they will definitely come over tomorrow, there is no need to call them, there is a psychological line of defense on the way to save it." ”

"It's up to you. ”

...

The joint investigation continued between the corps and the local detachment.

As the investigation of the case unfolded, Bai Song still tried to check his own previous thoughts.

That is: If the murderer feels that Yao is not necessarily dead, what will he do?

After a careful investigation, the situation was really discovered.

One of the deceased's bank cards was frozen, and the time was exactly yesterday night!

"What can be the situation?" Liu Shuyuan yawned: "I asked the bank for help in the middle of the night, but it took a lot of effort. ”

"How did it freeze?" Bai Song asked.

"From online banking, the password was entered incorrectly many times, resulting in. Liu Shuyuan explained.

"Could it be that someone wants Yao to go to the hospital and have no money to live?" Wang Liang's eyes lit up: "This is what Bai Song said!"

"Impossible. Bai Song shook his head: "I know that Yao himself has been injured and there is no way to unfreeze it, but the hospital actually can't see death in the face of this situation." Many people think that the hospital costs money to die, and the hospital is not a good hall, but the hospital is indeed facing acute trauma such as traffic accidents, and it cannot be saved because there is no money. ”

"Bai Song", Sun Jie thought for a while: "I think Detachment Zhang was right just now, don't substitute your thoughts for the murderer, maybe the murderer really thinks that this will make the hospital die and not be saved." ”

After speaking, Sun Jie glanced at Wang Liang, and then said to Bai Song: "For example, Wang Liang doesn't know about this kind of thing. ”

"Who said..."Wang Liang stubbornly said with a stiff neck: "I'm throwing bricks and attracting jade!"

...

"Then you have to check whether Yao's other cards have been frozen in the same way. Bai Song said: "The person who can know his card number must be more familiar with him, either his children or people who have transfer records with him." ”

"This is the bank I am familiar with, and you also know that people's systems are closed at night, and it is not possible to find a bank staff on duty", Liu Shuyuan said: "Wait for tomorrow." ”

"There are a lot of things that have to wait for tomorrow..."Bai Song was a little impatient inexplicably, "The soldiers are fast." ”

"Then what do you say, we listen to you. Sun Jie said.

"I'm still going to start from scratch, I need to know how this guy died, how he blew up. Bai Song put the question on the table: "First of all, you have to understand what the B explosive is, and you have to solve the case before dawn." ”